The reports are very helpful in tracking down just what went wrong with broken links. There is no intrinsic limit on the number of links that can be checked as it displays a continuously updated list of URLs which you can sort by different criteria.

It takes a while to learn how to use Xenu's Link Sleuth, and it can be daunting to understand the reports, but if you stick with it, you'll come to appreciate the excellent job it does.

Xenu's Link Sleuth was reviewed by
Gizmos Freeware on 2017-04-03
based on version 1.3.8.